"Jake was involved in our camp in Canberra earlier this year and has really stepped up for the Waratahs in Super Rugby. He's another uncapped player but it will be good to expose him to the Test environment," Cheika said in a release.

"Rob has been a strong leader in our Wallabies environment and his experience will be invaluable in this relatively inexperienced squad.

"We really want to put a strong emphasis on leadership in this team and we have some young leaders in this squad who are continuing to develop,"

Cheika announced the changes on ABC's Offsiders on Sunday morning, also speaking about the fearless brand his team wants to play amid a dismal Super Rugby season.

"We’ve got to play with a certain attitude that says: Australian rugby - we’re in for the fight," - Michael Cheika.

"The amount of negativity that’s been around it will affect our fans. None of this exists without our fans being involved in it - nothing exists without them.

"When someone's running at you , you’re not thinking about whether there’s five teams or four teams."

"We’ve got to have more of that resilient attitude.

"Players have done well considering their on-field effort about seeing through that wood to say, 'We can still be the best."

The Wallabies squad arrives in Melbourne on Sunday ahead of Saturday's first June Test against Fiji, kicking off at 3pm AEST. Buy tickets here.